First you need to remove the wheel and set aside. Try to remove the brake drum. If it wont come off try using a heavy brass hammer and hit the back of the rotor and tring not to hit the back plate. Once removed use a proper brake cleaner and clean the whole assembly. If you haven't done this before take a pictures and lots of them. You will need a pair of vise-grips and a flat head srewdriver. It would be better if you went and rented the proper tools but this will work. Use safety glasses. Pry off the springs and becareful as they are carrying a lot of power. Remove and set aside Now you must remove the shoes. There is a slot in the spring plates that hold them on. You might have to hold the pin on back. Just clamp down on the springs and push in and turn until the slot lines up with the pin and remove. Now we can remove the wheel cylinder. Remove the line in the back of the wheel cylinder and there will be two 10 mm bolts that need to be removed also. Instalation is reverse of removal.
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